Origin, distribution, and significance of cements in the Miocene Vinchina Formation sandstones, Vinchina Foreland Basin, northwestern Argentina

Autores
Díaz, Marianela Ximena Yasmin; Marenssi, Sergio Alfredo; Limarino, Carlos Oscar
Año de publicación
2025
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Miocene Vinchina Formation (VFm) is the thickest sedimentary unit of the Vinchina Basin, an Andean broken-foreland basin in northwestern Argentina. Between 16 and 7 Ma, more than 10,000 meters of sediments accumulated in this basin. The sedimentology and compositional characteristics of the unit have been thoroughly studied. However, its diagenetic history is poorly understood. Based on the composition of authigenic minerals and their temporal relationships in seventy-eight sandstone samples, this study presents an interpretation of the diagenesis of the VFm sandstones. Petrographic observations allowed identification of authigenic minerals and their temporal and spatial distribution. X-ray diffraction (XRD) analyses helped differentiate zeolites and clay-mineral species. Using a scanning electron microscope (SEM) with an energy-dispersive spectrometer (EDS) permitted the identification of crystal morphology and the composition of the neoformed phases. Sandstones of the VFm exhibit a diverse arrangement of twelve authigenic minerals, calcite, zeolites, and gypsum being the most prevalent. Their distribution varies geographically throughout the basin due to paleoenvironmental facies distribution, framework clast composition, and diagenetic processes. Carbonate cements dominate the coarser-grained (fluvial) facies in the northern region. In contrast, gypsum is more conspicuous in the finer-grained (lacustrine and playa lake) facies prevalent in the basin’s southern sector. Accordingly, clay cements increase from north to south as sediment grain size decreases. The distribution of zeolite cements correlates with the quantity and nature of volcanic clasts. Analcime is abundant in the upper and lower sections and correlates with rhyolitic paleovolcanic clasts. Heulandite and laumontite are frequent in the central and northern areas linked to pulses of andesitic neovolcanic detrital contributions. Finally, deep burial and uplift control the alteration of the neoformed authigenic phases. That is the case of the gypsum to anhydrite, clinoptilolite–heulandite to laumontite, and smectite illitization transformations during the mesogenesis or the formation of secondary porosity during telogenesis. Compositional and textural characteristics of VFm sandstone cements were used to produce a diagenetic model to explain the various pathways, from eogenesis to telogenesis, which occurred in different parts of the basin. Altogether, diagenetic studies suggest that primary composition, depositional-facies distribution, and burial depth were major controlling factors during diagenesis.The occurrence of the laumontite–quartz mineral pair in sandstones of the lower part of the VFm suggests that maximum temperatures may have reached a range between 139 and 162 °C. Depending on the sedimentary thickness considered, these values are consistent with either a 13.9 °C/km or a 30 °C/km geothermal gradient.Thus, establishing a robust depth–time model that considers the effects of progressive unconformities is necessary to determine the basin’s paleogeothermal gradient accurately.
Fil: Díaz, Marianela Ximena Yasmin. Universidad Nacional de San Juan. Facultad de Ciencias Exactas Físicas y Naturales. Instituto y Museo de Ciencias Naturales. Área de Paleontología de Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Marenssi, Sergio Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; Argentina
Fil: Limarino, Carlos Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; Argentina
Materia
SASNDSTONE CEMENTS
ZEOLITES
DIAGENESIS
MIOCENE
FORELAND BASIN
ARGENTINA
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
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oai:ri.conicet.gov.ar:11336/264020
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/264020
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network_name_str CONICET Digital (CONICET)
spelling Origin, distribution, and significance of cements in the Miocene Vinchina Formation sandstones, Vinchina Foreland Basin, northwestern ArgentinaDíaz, Marianela Ximena YasminMarenssi, Sergio AlfredoLimarino, Carlos OscarSASNDSTONE CEMENTSZEOLITESDIAGENESISMIOCENEFORELAND BASINARGENTINAhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Miocene Vinchina Formation (VFm) is the thickest sedimentary unit of the Vinchina Basin, an Andean broken-foreland basin in northwestern Argentina. Between 16 and 7 Ma, more than 10,000 meters of sediments accumulated in this basin. The sedimentology and compositional characteristics of the unit have been thoroughly studied. However, its diagenetic history is poorly understood. Based on the composition of authigenic minerals and their temporal relationships in seventy-eight sandstone samples, this study presents an interpretation of the diagenesis of the VFm sandstones. Petrographic observations allowed identification of authigenic minerals and their temporal and spatial distribution. X-ray diffraction (XRD) analyses helped differentiate zeolites and clay-mineral species. Using a scanning electron microscope (SEM) with an energy-dispersive spectrometer (EDS) permitted the identification of crystal morphology and the composition of the neoformed phases. Sandstones of the VFm exhibit a diverse arrangement of twelve authigenic minerals, calcite, zeolites, and gypsum being the most prevalent. Their distribution varies geographically throughout the basin due to paleoenvironmental facies distribution, framework clast composition, and diagenetic processes. Carbonate cements dominate the coarser-grained (fluvial) facies in the northern region. In contrast, gypsum is more conspicuous in the finer-grained (lacustrine and playa lake) facies prevalent in the basin’s southern sector. Accordingly, clay cements increase from north to south as sediment grain size decreases. The distribution of zeolite cements correlates with the quantity and nature of volcanic clasts. Analcime is abundant in the upper and lower sections and correlates with rhyolitic paleovolcanic clasts. Heulandite and laumontite are frequent in the central and northern areas linked to pulses of andesitic neovolcanic detrital contributions. Finally, deep burial and uplift control the alteration of the neoformed authigenic phases. That is the case of the gypsum to anhydrite, clinoptilolite–heulandite to laumontite, and smectite illitization transformations during the mesogenesis or the formation of secondary porosity during telogenesis. Compositional and textural characteristics of VFm sandstone cements were used to produce a diagenetic model to explain the various pathways, from eogenesis to telogenesis, which occurred in different parts of the basin. Altogether, diagenetic studies suggest that primary composition, depositional-facies distribution, and burial depth were major controlling factors during diagenesis.The occurrence of the laumontite–quartz mineral pair in sandstones of the lower part of the VFm suggests that maximum temperatures may have reached a range between 139 and 162 °C. Depending on the sedimentary thickness considered, these values are consistent with either a 13.9 °C/km or a 30 °C/km geothermal gradient.Thus, establishing a robust depth–time model that considers the effects of progressive unconformities is necessary to determine the basin’s paleogeothermal gradient accurately.Fil: Díaz, Marianela Ximena Yasmin. Universidad Nacional de San Juan. Facultad de Ciencias Exactas Físicas y Naturales. Instituto y Museo de Ciencias Naturales. Área de Paleontología de Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Marenssi, Sergio Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; ArgentinaFil: Limarino, Carlos Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; ArgentinaSociety for Sedimentary Geology2025-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/264020Díaz, Marianela Ximena Yasmin; Marenssi, Sergio Alfredo; Limarino, Carlos Oscar; Origin, distribution, and significance of cements in the Miocene Vinchina Formation sandstones, Vinchina Foreland Basin, northwestern Argentina; Society for Sedimentary Geology; Journal of Sedimentary Research - (Print); 95; 1; 2-2025; 133-1551527-1404CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pubs.geoscienceworld.org/jsedres/article/95/1/133/652031/Origin-distribution-and-significance-of-cements-ininfo:eu-repo/semantics/altIdentifier/doi/10.2110/jsr.2024.105info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-08-25T15:09:27Zoai:ri.conicet.gov.ar:11336/264020instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982026-08-25 15:09:27.891CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Origin, distribution, and significance of cements in the Miocene Vinchina Formation sandstones, Vinchina Foreland Basin, northwestern Argentina
title Origin, distribution, and significance of cements in the Miocene Vinchina Formation sandstones, Vinchina Foreland Basin, northwestern Argentina
spellingShingle Origin, distribution, and significance of cements in the Miocene Vinchina Formation sandstones, Vinchina Foreland Basin, northwestern Argentina
Díaz, Marianela Ximena Yasmin
SASNDSTONE CEMENTS
ZEOLITES
DIAGENESIS
MIOCENE
FORELAND BASIN
ARGENTINA
title_short Origin, distribution, and significance of cements in the Miocene Vinchina Formation sandstones, Vinchina Foreland Basin, northwestern Argentina
title_full Origin, distribution, and significance of cements in the Miocene Vinchina Formation sandstones, Vinchina Foreland Basin, northwestern Argentina
title_fullStr Origin, distribution, and significance of cements in the Miocene Vinchina Formation sandstones, Vinchina Foreland Basin, northwestern Argentina
title_full_unstemmed Origin, distribution, and significance of cements in the Miocene Vinchina Formation sandstones, Vinchina Foreland Basin, northwestern Argentina
title_sort Origin, distribution, and significance of cements in the Miocene Vinchina Formation sandstones, Vinchina Foreland Basin, northwestern Argentina
dc.creator.none.fl_str_mv Díaz, Marianela Ximena Yasmin
Marenssi, Sergio Alfredo
Limarino, Carlos Oscar
author Díaz, Marianela Ximena Yasmin
author_facet Díaz, Marianela Ximena Yasmin
Marenssi, Sergio Alfredo
Limarino, Carlos Oscar
author_role author
author2 Marenssi, Sergio Alfredo
Limarino, Carlos Oscar
author2_role author
author
dc.subject.none.fl_str_mv SASNDSTONE CEMENTS
ZEOLITES
DIAGENESIS
MIOCENE
FORELAND BASIN
ARGENTINA
topic SASNDSTONE CEMENTS
ZEOLITES
DIAGENESIS
MIOCENE
FORELAND BASIN
ARGENTINA
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The Miocene Vinchina Formation (VFm) is the thickest sedimentary unit of the Vinchina Basin, an Andean broken-foreland basin in northwestern Argentina. Between 16 and 7 Ma, more than 10,000 meters of sediments accumulated in this basin. The sedimentology and compositional characteristics of the unit have been thoroughly studied. However, its diagenetic history is poorly understood. Based on the composition of authigenic minerals and their temporal relationships in seventy-eight sandstone samples, this study presents an interpretation of the diagenesis of the VFm sandstones. Petrographic observations allowed identification of authigenic minerals and their temporal and spatial distribution. X-ray diffraction (XRD) analyses helped differentiate zeolites and clay-mineral species. Using a scanning electron microscope (SEM) with an energy-dispersive spectrometer (EDS) permitted the identification of crystal morphology and the composition of the neoformed phases. Sandstones of the VFm exhibit a diverse arrangement of twelve authigenic minerals, calcite, zeolites, and gypsum being the most prevalent. Their distribution varies geographically throughout the basin due to paleoenvironmental facies distribution, framework clast composition, and diagenetic processes. Carbonate cements dominate the coarser-grained (fluvial) facies in the northern region. In contrast, gypsum is more conspicuous in the finer-grained (lacustrine and playa lake) facies prevalent in the basin’s southern sector. Accordingly, clay cements increase from north to south as sediment grain size decreases. The distribution of zeolite cements correlates with the quantity and nature of volcanic clasts. Analcime is abundant in the upper and lower sections and correlates with rhyolitic paleovolcanic clasts. Heulandite and laumontite are frequent in the central and northern areas linked to pulses of andesitic neovolcanic detrital contributions. Finally, deep burial and uplift control the alteration of the neoformed authigenic phases. That is the case of the gypsum to anhydrite, clinoptilolite–heulandite to laumontite, and smectite illitization transformations during the mesogenesis or the formation of secondary porosity during telogenesis. Compositional and textural characteristics of VFm sandstone cements were used to produce a diagenetic model to explain the various pathways, from eogenesis to telogenesis, which occurred in different parts of the basin. Altogether, diagenetic studies suggest that primary composition, depositional-facies distribution, and burial depth were major controlling factors during diagenesis.The occurrence of the laumontite–quartz mineral pair in sandstones of the lower part of the VFm suggests that maximum temperatures may have reached a range between 139 and 162 °C. Depending on the sedimentary thickness considered, these values are consistent with either a 13.9 °C/km or a 30 °C/km geothermal gradient.Thus, establishing a robust depth–time model that considers the effects of progressive unconformities is necessary to determine the basin’s paleogeothermal gradient accurately.
Fil: Díaz, Marianela Ximena Yasmin. Universidad Nacional de San Juan. Facultad de Ciencias Exactas Físicas y Naturales. Instituto y Museo de Ciencias Naturales. Área de Paleontología de Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Marenssi, Sergio Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; Argentina
Fil: Limarino, Carlos Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; Argentina
description The Miocene Vinchina Formation (VFm) is the thickest sedimentary unit of the Vinchina Basin, an Andean broken-foreland basin in northwestern Argentina. Between 16 and 7 Ma, more than 10,000 meters of sediments accumulated in this basin. The sedimentology and compositional characteristics of the unit have been thoroughly studied. However, its diagenetic history is poorly understood. Based on the composition of authigenic minerals and their temporal relationships in seventy-eight sandstone samples, this study presents an interpretation of the diagenesis of the VFm sandstones. Petrographic observations allowed identification of authigenic minerals and their temporal and spatial distribution. X-ray diffraction (XRD) analyses helped differentiate zeolites and clay-mineral species. Using a scanning electron microscope (SEM) with an energy-dispersive spectrometer (EDS) permitted the identification of crystal morphology and the composition of the neoformed phases. Sandstones of the VFm exhibit a diverse arrangement of twelve authigenic minerals, calcite, zeolites, and gypsum being the most prevalent. Their distribution varies geographically throughout the basin due to paleoenvironmental facies distribution, framework clast composition, and diagenetic processes. Carbonate cements dominate the coarser-grained (fluvial) facies in the northern region. In contrast, gypsum is more conspicuous in the finer-grained (lacustrine and playa lake) facies prevalent in the basin’s southern sector. Accordingly, clay cements increase from north to south as sediment grain size decreases. The distribution of zeolite cements correlates with the quantity and nature of volcanic clasts. Analcime is abundant in the upper and lower sections and correlates with rhyolitic paleovolcanic clasts. Heulandite and laumontite are frequent in the central and northern areas linked to pulses of andesitic neovolcanic detrital contributions. Finally, deep burial and uplift control the alteration of the neoformed authigenic phases. That is the case of the gypsum to anhydrite, clinoptilolite–heulandite to laumontite, and smectite illitization transformations during the mesogenesis or the formation of secondary porosity during telogenesis. Compositional and textural characteristics of VFm sandstone cements were used to produce a diagenetic model to explain the various pathways, from eogenesis to telogenesis, which occurred in different parts of the basin. Altogether, diagenetic studies suggest that primary composition, depositional-facies distribution, and burial depth were major controlling factors during diagenesis.The occurrence of the laumontite–quartz mineral pair in sandstones of the lower part of the VFm suggests that maximum temperatures may have reached a range between 139 and 162 °C. Depending on the sedimentary thickness considered, these values are consistent with either a 13.9 °C/km or a 30 °C/km geothermal gradient.Thus, establishing a robust depth–time model that considers the effects of progressive unconformities is necessary to determine the basin’s paleogeothermal gradient accurately.
publishDate 2025
dc.date.none.fl_str_mv 2025-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/264020
Díaz, Marianela Ximena Yasmin; Marenssi, Sergio Alfredo; Limarino, Carlos Oscar; Origin, distribution, and significance of cements in the Miocene Vinchina Formation sandstones, Vinchina Foreland Basin, northwestern Argentina; Society for Sedimentary Geology; Journal of Sedimentary Research - (Print); 95; 1; 2-2025; 133-155
1527-1404
CONICET Digital
CONICET
url http://hdl.handle.net/11336/264020
identifier_str_mv Díaz, Marianela Ximena Yasmin; Marenssi, Sergio Alfredo; Limarino, Carlos Oscar; Origin, distribution, and significance of cements in the Miocene Vinchina Formation sandstones, Vinchina Foreland Basin, northwestern Argentina; Society for Sedimentary Geology; Journal of Sedimentary Research - (Print); 95; 1; 2-2025; 133-155
1527-1404
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
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info:eu-repo/semantics/altIdentifier/doi/10.2110/jsr.2024.105
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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eu_rights_str_mv openAccess
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dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
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dc.publisher.none.fl_str_mv Society for Sedimentary Geology
publisher.none.fl_str_mv Society for Sedimentary Geology
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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